The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2009
Filed:
Aug. 12, 2004
Applicants:
Masanori Wada, Otsu, JP;
Hirokazu Takeuchi, Otsu, JP;
Inventors:
Masanori Wada, Otsu, JP;
Hirokazu Takeuchi, Otsu, JP;
Assignee:
Nippon Electric Glass Co., Ltd., Shiga-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/36 (2006.01); G02B 6/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical receptacle comprises a precision sleeve, a stub with an optical fiber fixed to one end of an inner hole of the precision sleeve through an adhesive, and a sleeve holder fixed to an outer periphery of the precision sleeve by press-fitting or through the adhesive. An outer periphery of the stub with an optical fiber and the inner hole of the precision sleeve has a surface roughness Ra value of 0.1 μm or more and 0.5 μm or less.